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µPD750008 USER'S MANUAL
(c) Clear timing for case where start of transfer is directed during BUSY
SIO
SCK
SB0, SB1
ACKD
SCK
6
SB0, SB1
BSYE
164
Figure 5-64. Operation of ACKD (2/2)
6
7
8
9
D2
D1
D0
Figure 5-65. Operation of BSYE
7
8
9
When BSYE = 1 at this point
Transfer start request
ACK
BUSY
ACK
BUSY
When reset operation is executed during
this period and BSYE = 0 at the falling edge
of SCK
Transfer start
D7
D6
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